Whilst this is a photo copy, and some of the pages are a little askew, it was all readable and intact. A real bonus finding an old manual for a classic piece of kit that no other site had.
Great stuff.
The manuel was exactly what I needed and I received it promptly. Thanks
Text excerpt from page 8 (click to view)
3. Pull the surface unit straight away from the receptacle.
4. Lift out the reflector bowl. See �Cleaning Chart� on page 9 for cleaning instructions.
Replacing
2. Line up openings in the reflector bowl with the surface unit receptacle and the element hold down clip.
3. Hold the surface unit as level as possible with the terminal just started into the receptacle. Push the surface unit terminal into the receptacle.
4. When terminal is pushed into the receptacle as far as it will go, push down the edge of the surface unit opposite the receptacle. The element hold down clip will keep the surface unit from moving around.